Home / 991,642.09-1,487,884.05-541,837.52

Finding the Fourth Proportional to 991,642.09, 1,487,884.05 and 541,837.52

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Solution

The fourth proportional to 991,642.09, 1,487,884.05 and 541,837.52 is: 812,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,642.09 : 1,487,884.05 = 541,837.52 : x
  2. Step 2: Convert to fraction form
    991,642.09/1,487,884.05 = 541,837.52/x
  3. Step 3: Cross multiply
    991,642.09x = 1,487,884.05 × 541,837.52
  4. Step 4: Simplify right side
    991,642.09x = 806,191,403,699.56
  5. Step 5: Solve for x
    x = 806,191,403,699.56/991,642.09
  6. Step 6: Final answer
    x = 812,986.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.